174 Proceedings of Jtidiana Academy of ficience. 



lected May 16, 1S99. and has been repeatedly collected there, especially from 

 1902 to 1908. by different people. About 12 different collections are depos- 

 ited in the Arthur herbarium from this locality. During the past 12 years, 

 howevier, no collections haAe been made, though it has been repeatedly 

 searched for, and we have feared that the species was extinct in this 

 locality. It was. therefore, with considerable interest that the writer 

 made collections of this rust on July .") and Sept. 2, 1920 in a small swamp 

 about one-half mile northeast of Dayton in Tippecanoe Co. 



143. Uredinopsis Atkinsonii Magu. 

 On Filix bulbifera (L.) Und. 

 Pine Creek, Warren Co.. Aug. 11, 1918. 



149. Ukomyces SEmTiosus Kern. 



On Aristida gracilis Ell. 

 Oakland City, Gibson Co.. Oct. 5, 191G. 



On Aristida oligantha Michx. 

 Paoli, Orange Co., Oct. 6. 1916. 



SPECIES NEW TO INDIANA. 



Uredinaceae. 



156. PucciNiASTRUM Myrtiili (Schuin.) Arth. Result. Sci. Congr. Bot. 



Vienne 337. 1906. 

 Accidivm (?) Myrlilli Schnni. Enum. PI. Saell. 2:227. 1803. 

 J'niJd iniiiiiinoii Scliw. Schr. Nat. Ges. Leipzig 1:70. 1822. 

 Prridrniiiinii Pulii Thiini. Mitth. Forstl. Vers. Oest. 2:320. 1880. 

 Pucdniastrinii iiiiniiinini Arth. Result. Sci. Congr. Bot. Vienne 337. 

 1906. 

 I On Tsuga canadknsis (L.) Carr. 

 Wooded bluff about H miles southwest of Grantsburg, Crawford Co., C. 

 C. Deam 27782. 



The urediuia and telia of this species occur on Ericaceae and should 

 be found in Indiana on G:iyU"issacia or Vaccinium. 



The collection cited above is abundant and aecia are on both leaves and 

 cones. 



157. Uredinopsis Strittiiiopteridis Stormer, Bot. Noti.ser 1895 :81. 1895. 

 On Anchistea virginica (L.) Presl. (Woodwardia virginica (L.) .J. 



E. Smith). 



In an Aronia mclanocarpa swamp one and one-half miles north of Mill- 

 creek, Laporte Co.. Aug. 25. 1920. C. C. Deam 3240G. 



This is a rare form known (_)therwise on this host only from Vermont 

 and Michigan. 



PUCCINIACEAE. 



158. Gymnosporangium externum Arth. & Kern, Mycologia 1 :254. 1909. 



I On GlLLENIA STIPULATA NUTT. 



Wooded ridge 8 miles southeast of Cannelton, Perry Co., June 3, 1918, 

 C. C. Deam 25080. 



